---Bob has gone to California---Oh can you tell me when he ?A. leftB. has leftC. is le

问题补充：

---Bob has gone to California.

---Oh, can you tell me when he ?

A. left

B. has left

C. is leaving

D. would leave

答案：

(答案→)A. left

B. has left

C. is leaving

D. would leave

解析：考查时态。句意；鲍勃去了加利福尼亚。你能告诉我他什么时候去的？所以他离开是过去离开的，要用一般过去时。选A。